Ocean Blue Rabbiteye Blueberry Breeding for Fruit Quality

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Solution Overview

Problem

Existing blueberry varieties face challenges in fruit quality, disease resistance, and market timing, particularly in the mid-season fresh fruit market, with issues related to grittiness, firmness, and disease susceptibility.

Innovation Solution

The development of the 'Ocean Blue' rabbiteye blueberry variety, derived from crossing 'Centurion' and 'Rahi', which exhibits improved fruit quality with reduced grittiness, medium to good firmness, and resistance to main blueberry diseases, with characteristics suitable for the mid-season market.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing blueberry varieties are used, then fruit production is maintained, but fruit quality deteriorates due to grittiness and poor firmness

Engineering Contradiction:

Improvefruit qualityVSAvoidgrittiness

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent applies parameter changes by selecting and propagating seedling plants with specific desirable traits (medium to good firmness, little grittiness) from a controlled crossing population. The breeding process modifies the physical and chemical parameters of the fruit tissue to eliminate grittiness while maintaining firmness, achieving improved fruit quality through controlled genetic parameter modification.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If existing blueberry varieties are used, then cultivation is maintained, but disease resistance is insufficient

Engineering Contradiction:

Improvedisease resistanceVSAvoiddisease susceptibility

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent employs a systematic breeding approach using a controlled population of seedling plants derived from crossing specific parent varieties. By evaluating multiple generations of seedlings and selecting those with desirable disease resistance traits, the process creates a new variety that inherits disease resistance from selected parent lines, effectively replacing disease-susceptible varieties with disease-resistant ones.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

3Productivity

If existing blueberry varieties are used, then market supply is maintained, but market timing is suboptimal

Engineering Contradiction:

Improvemarket timingVSAvoidmaturity period

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by controlling the maturation timing of the new variety through selective breeding. The variety is designed to mature 3-4 weeks earlier than the popular 'Centra Blue' variety, allowing the fruit to be available on the market during the mid-season period when competition is lower and prices may be more favorable, thus gaining a time advantage in the market.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUSPP21735P3Blueberry variety named `Ocean Blue`

Publication Date: 2011.03.01 THE NEW ZEALAND INSITUTE FOR PLANT AND FOOD RESEARCH LIMITED

AI summary

A new and distinct rabbiteye blueberry variety is described. The variety results from selection among a population of seedlings derived from crossing the blueberry varieties known as ‘Centurion’ (not patented) and ‘Rahi’ (not patented). The fruit of this new variety has an outstanding fruit quality with little grittiness, medium to good firmness and appears suitable for the mid season fresh fruit market and has been named ‘Ocean Blue’.